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| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-13 12:14:05 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-13 12:14:05 -0400 |
| commit | 4aef2ec9022b217f74d0f4c9b84081f07cc223d9 (patch) | |
| tree | edf9bb9ca1f8ab6345c156a7e87aaed28939f66c /mm/mremap.c | |
| parent | 7c67f54661fcc8d141fb11abbab1739f32e13b03 (diff) | |
| parent | 37486135d3a7b03acc7755b63627a130437f066a (diff) | |
| download | linux-stable-4aef2ec9022b217f74d0f4c9b84081f07cc223d9.tar.gz linux-stable-4aef2ec9022b217f74d0f4c9b84081f07cc223d9.tar.bz2 linux-stable-4aef2ec9022b217f74d0f4c9b84081f07cc223d9.zip | |
Merge branch 'kvm-amd-fixes' into HEAD
Diffstat (limited to 'mm/mremap.c')
| -rw-r--r-- | mm/mremap.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/mm/mremap.c b/mm/mremap.c index a7e282ead438..c881abeba0bf 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -413,9 +413,20 @@ static unsigned long move_vma(struct vm_area_struct *vma, /* Always put back VM_ACCOUNT since we won't unmap */ vma->vm_flags |= VM_ACCOUNT; - vm_acct_memory(vma_pages(new_vma)); + vm_acct_memory(new_len >> PAGE_SHIFT); } + /* + * VMAs can actually be merged back together in copy_vma + * calling merge_vma. This can happen with anonymous vmas + * which have not yet been faulted, so if we were to consider + * this VMA split we'll end up adding VM_ACCOUNT on the + * next VMA, which is completely unrelated if this VMA + * was re-merged. + */ + if (split && new_vma == vma) + split = 0; + /* We always clear VM_LOCKED[ONFAULT] on the old vma */ vma->vm_flags &= VM_LOCKED_CLEAR_MASK; |